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Finding the Fourth Proportional to 116,396.92, 160,648.66 and 68,647.48

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Solution

The fourth proportional to 116,396.92, 160,648.66 and 68,647.48 is: 94,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,396.92 : 160,648.66 = 68,647.48 : x
  2. Step 2: Convert to fraction form
    116,396.92/160,648.66 = 68,647.48/x
  3. Step 3: Cross multiply
    116,396.92x = 160,648.66 × 68,647.48
  4. Step 4: Simplify right side
    116,396.92x = 11,028,125,674.38
  5. Step 5: Solve for x
    x = 11,028,125,674.38/116,396.92
  6. Step 6: Final answer
    x = 94,745.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.